Brochure

PRODUCT RANGE
CROSS SECTION
03587-15NA
SERIES 5213 521 5231
MAX. WORKING PRESSURE 140 psi 200 psi 200 psi
SETTING RANGE 85 — 120°F 85 – 150°F 95 – 150°F
STABLE OPERATING MIN. FLOW 0.5 gpm 1.3 gpm
4.4 gpm (1 - 1¼”)
8.8 gpm ( 1½ - 2”)
PERFORMANCE
SERIES SIZE CV
5213 ½”-1” 2.0
521* ½”-1” 3.0
5231
1” 7.0
1¼” 7.6
1½” 13.0
2” 14.2
Calef North America, Inc. · 3883 W. Milwaukee Road · Milwaukee, WI 53208
Tel. [phone] · Fax [phone]
sales@calef.com · www.calef.com
© Copyright 2015 Calef North America, Inc.
WE RESERVE THE RIGHT TO CHANGE OUR PRODUCTS AND THEIR RELEVANT
TECHNICAL DATA, CONTAINED IN THIS PUBLICATION, AT ANY TIME AND WITHOUT
PRIOR NOTICE.
NPT OR SWEAT UNION CONNECTIONS
CALEFFI ADJUSTABLE THREE-WAY
THERMOSTATIC MIXING VALVES
Caleffi 521, 5213, and 5231 series three-
way mixing valves are used in residential and
commercial systems producing domestic
hot water or in hydronic and radiant heating
systems. Compensating for both temperature
and pressure fluctuations of incoming hot and
cold water, these valves maintain the desired
output temperature of mixed water.
The 521 and 5231 series are certified to ASSE
1017, the 5213 series to ASSE 1070, and all
series are certified low lead.
OUTLET TEMPERATURE GAUGE
APPLICATION DIAGRAM
REFERENCE DOCUMENTATION:
TECHNICAL BROCHURES 01050, 01092, 01256
COLD
HOT
MIX
T
Key to symbols
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
MI
N
M
A
X
7
1
2
1
2
Globe Valve
STORAGE
HOT WATER
HEATER
Caleffi 521 and 5231 series mixing
valves are available with optional outlet
temperature gauge, or field installed
with point of distribution low-lead brass
mixed temperature gauge adapter (above)
replacing the existing threaded union outlet
nut and tailpiece. Removable 2” gauge fits
into temperature well.
Point of distribution with recirculation
Point of use installation
Inlet check valve
NPT tailpiece
Inlet check valve
sweat tailpiece
*521 is available in 3/4” press connections.